65851270637016 has 64 divisors (see below), whose sum is σ = 168000193739520. Its totient is φ = 21502133976960.

The previous prime is 65851270637003. The next prime is 65851270637017. The reversal of 65851270637016 is 61073607215856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65851270637017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40219450 + ... + 41824713.

It is an arithmetic number, because the mean of its divisors is an integer number (2625003027180).

Almost surely, 2^{65851270637016} is an apocalyptic number.

It is an amenable number.

65851270637016 is an abundant number, since it is smaller than the sum of its proper divisors (102148923102504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65851270637016 is a wasteful number, since it uses less digits than its factorization.

65851270637016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82044856 (or 82044852 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 57.

The spelling of 65851270637016 in words is "sixty-five trillion, eight hundred fifty-one billion, two hundred seventy million, six hundred thirty-seven thousand, sixteen".